I have a 6" stabilizer, don't know what kind tho. It is about 4 years old. I moved the target back to 40 yards and put 2-3 shot groups where at least 2 of the arrows were touching in both groups and the other one was less that an inch away. But on the next relay of arrows I was getting tired and those groups grew out by a couple inches! I don't plan on shooting at 40 but Im trying to get my 30 and 35 yard groups better.